Adsorption of crude oil from crude oil-water emulsion by mesoporous hafnium oxide ceramics

We report a mesoporous hafnium oxide (MHO) ceramic synthesized via a sol-gel process that has exhibited 99.9% removal capacity of crude oil from an oil-in-water emulsion at a concentration of 3 mg mL −1 . The as-prepared MHO ceramic was regenerated after crude oil sequestration via calcination at 80...

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Bibliographic Details
Published in:Environmental science water research & technology 2020-08, Vol.6 (8), p.235-242
Main Authors: Hussain, Fatima A, Zamora, Julio, Ferrer, Ivonne M, Kinyua, Maureen, Velázquez, Jesús M
Format: Article
Language:English
Subjects:
Ceramics
Crude oil
Emulsions
Environmental cleanup
Gels
Hafnium
Hafnium oxide
Oil
Oil spills
Sol-gel processes
Thermal stability
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Summary:We report a mesoporous hafnium oxide (MHO) ceramic synthesized via a sol-gel process that has exhibited 99.9% removal capacity of crude oil from an oil-in-water emulsion at a concentration of 3 mg mL −1 . The as-prepared MHO ceramic was regenerated after crude oil sequestration via calcination at 800 °C under ambient conditions. The scalability of the synthetic method and thermal stability of the MHO ceramic material makes it a promising, underexplored, and reusable adsorbent for efficient oil spill clean-up. An environmentally benign, mechanically stable, and renewable mesoporous hafnium oxide ceramic synthesized via a sol-gel process has exhibited 99.9% removal capacity of crude oil from an oil-in-water emulsion.
ISSN:2053-1400
2053-1419
DOI:10.1039/d0ew00451k